相关试题
【单选题】
用量最多、用途最广的石膏是 ___。
A. 建筑石膏
B. 粉刷石膏
C. 模型石膏
D. 高强石膏
【单选题】
石灰应用中，在___操作时应进行“陈伏”
【单选题】
石灰熟化时体积___
A. 膨胀大
B. 收缩大
C. 无变化
D. 微量膨胀
【单选题】
建筑石膏的优点是___
A. 保水性差
B. 耐水性差
C. 保温、隔热性好
D. 自重大
【单选题】
下列沥青品种中，___是改良沥青
A. 煤沥青
B. 建筑石油沥青
C. 道路石油沥青
D. 沥青胶
【单选题】
随着时间的延长，石油沥青中组成逐渐递变的顺序是___
A. 油分→树脂→地沥青质
B. 树脂→油分→地沥青质
C. 油分→地沥青质→树脂
D. 地沥青质→树脂→油分
【单选题】
在石油沥青中，增加___成分可提高沥青的耐久性
A. 石英粉
B. 油分
C. 树脂
D. 地沥青质
【单选题】
沥青混合料在夏季高温条件下，经车辆荷载反复作用后不产生车辙和波浪等病害的性能，称为___性能
A. 高温稳定性
B. 低温抗裂性
C. 高温抗裂性
D. 耐久性
【单选题】
沥青混合料在外界各种因素(如阳光、空气、水、车辆荷载等)的长期作用下，仍能保持原有的性质的能力，称为___
A. 高温稳定性
B. 耐久性
C. 刚度
D. 抗滑性
【单选题】
烧结普通砖在砖窑中焙烧时为氧化气氛，产品称为___
A. 红砖
B. 青砖
C. 过火砖
D. 欠火砖
【单选题】
烧结普通砖在还原气氛中闷窑，产品称为___
A. 红砖
B. 青砖
C. 过火砖
D. 欠火砖
【单选题】
烧结普通砖焙烧不均匀或时间过短，产品称为___
A. 红砖
B. 青砖
C. 过火砖
D. 欠火砖
【单选题】
烧结普通砖焙烧温度过高或时间过长，产品称为___
A. 红砖
B. 青砖
C. 过火砖
D. 欠火砖
【单选题】
该钢筋的断后伸长率δ10___
A. 13.5%
B. 25%
C. 26%
D. 27%
【单选题】
该钢筋的屈强比___
A. 0.63
B. 0.315
C. 0.36
D. 0.66
【单选题】
冷底子油主要用做___。
A. 作屋面防水层
B. 嵌缝材料
C. 涂刷防水工程的底层
D. 粘贴防水卷材
【单选题】
矿渣水泥早期强度低的主要原因是因为矿渣水泥的___普通水泥。
A. 细度低于
B. 水泥熟料含量小于
C. 石膏掺量多于
D. 需水量大于
【单选题】
粉煤灰水泥耐久腐蚀性较强，其主要原因是水泥石中___
A. Ca(OH)2含量少
B. Ca(OH)2含量多
C. 水化铝酸钙含量少
D. （a+c）
【单选题】
某岩石在气干状态，干燥状态和吸水饱和状态下的抗压强度分别为128,132,112MPa,则该岩石的软化系数Kp为___
A. 0.88
B. 0.85
C. 0.97
D. 0.15
【单选题】
矿渣水泥后期强度发展快，主要是因为___的水化反应产生越来越多水化产物。
A. 活性SiO2和Al2O3与CaO
B. 活性SiO2和Al2O3与Ca(OH)2
C. 活性SiO2和Al2O3石膏
D. 活性SiO2和Al2O3与未水化的水泥颗粒。
【单选题】
当水泥中碱含量高时，与活性骨料中所含的活性SiO2会___
A. 发生碱骨料反应，使混凝土结构破坏。
B. 发生反应生成水化产物，提高骨料界面强度
C. 反应使混凝土密度提高，强度增加
D. 引起混凝土收缩增大
【单选题】
针片状骨料含量多，会使混凝土的___
A. 用水量减少
B. 流动性提高
C. 强度降低
D. 节约水泥
【单选题】
保温要求高的非承重墙体应优先选用___
A. 加气混凝土
B. 轻骨料混凝土
C. 烧结普通砖
D. 普通混凝土大板
【单选题】
随碳素结构钢牌号增大，则其___
A. бs,бb增大δ减小
B. 可焊性降低
C. δ增大
D. (a+b)
【单选题】
材料的密实度提高，则其抗冻性___
A. 提高
B. 降低
C. a或者b
D. 弹性
【单选题】
混凝土路面不宜用___水泥。
A. 粉煤灰
B. 硅酸盐
C. 普通
D. (b+c)
【单选题】
当水泥浆稠度，用量以及骨料总量都不变的条件下砂率过小过过大，混凝土___均降低。
A. 流动性
B. 粘聚性
C. 保水性
D. (b+c)
【单选题】
对于某一种材料来说，无论环境怎样变化，其___都是一定值。
A. 表观密度
B. 密度
C. 导热系数
D. 平衡含水率
【单选题】
材料密度是指___。
A. 自然状态下单位体积质量
B. 绝对密实状态下单位体积质量
C. 堆积自然状态下单位体积质量
D. 饱和状态下单位体积质量
【单选题】
材料表观密度是指___。
A. 自然状态下单位体积质量
B. 绝对密实状态下单位体积质量
C. 堆积自然状态下单位体积质量
D. 饱和状态下单位体积质量
【单选题】
材料堆积密度是指___。
A. 自然状态下单位体积质量
B. 绝对密实状态下单位体积质量
C. 堆积自然状态下单位体积质量
D. 饱和状态下单位体积质量
【单选题】
材料的体积内，孔隙体积所占的比例称为___
A. 孔隙率
B. 空隙率
C. 填充率
D. 密实度
【单选题】
粉状、颗粒状或纤维状材料在堆积状态下单位体积的质量称为 ___
A. 密度
B. 表现密度
C. 堆积密度
D. 密实度
【单选题】
砂的内部和表层均含水达到饱和状态，而表面的开口孔隙及面层却处于无水 状态称为___
A. 干燥状态
B. 气干状态
C. 湿润状态
D. 饱和面干状态
【单选题】
砂的孔隙中不含水或含水极少的状态称为___
A. 干燥状态
B. 气干状态
C. 湿润状态
D. 饱和面干状态
【单选题】
砂的孔隙中所含水与大气湿度相平衡的状态称为___
A. 干燥状态
B. 气干状态
C. 湿润状态
D. 饱和面干状态
推荐试题
【单选题】
Australia is one of the few countries ___________ people drive on the left of the road.___
A. which
B. that
C. where
D. on which
【单选题】
The grey building is the place where the workers live, and the white building is the place where the spare parts _________ .___
A. are producing
B. are produced
C. produced
D. being produced
【单选题】
Once environmental damage ___________, it takes many years for the system to recover.___
A. is to do
B. does
C. had done
D. is done
【单选题】
We worked hard and completed the task ________.___
A. in the time
B. on the time
C. ahead of time
D. before time
【单选题】
I didn't expect you to turn __________ at the meeting yesterday.___
A. up
B. to
C. out
D. over
【单选题】
Mike is better than Peter _________ swimming.___
【单选题】
Eggs, though rich in nourishments, have ___________ of fat.___
A. a large number
B. the large number
C. a large amount
D. the large amount
【单选题】
His salary as a driver is much higher than _____________.___
A. a porter
B. is a porter
C. as a porter
D. that of a porter
【单选题】
I have been looking forward to__________ from my parents.___
A. hear
B. being heard
C. be heard
D. hearing
【单选题】
The manager will not __________ us to use his car.___
A. have
B. let
C. agree
D. allow
【单选题】
__________ her and then try to copy what she does.___
A. Mind
B. See
C. Stare at
D. Watch
【单选题】
It's bad __________ for you to smoke in the public places where smoking is not allowed.___
A. behavior
B. action
C. manner
D. movement
【单选题】
— I think John and Peter will.___
A. carry out
B. get through
C. take in
D. set aside
【单选题】
If she wants to keep slim, she must make a ________ in her diet.___
A. change
B. turn
C. run
D. go
【单选题】
___________ the War of Independence, the United States was an English colony.___
A.
B. efore B. At
C. In
D. Between
【单选题】
A police officer claimed he had attempted to _________ paying his fare.___
A. avoid
B. reject
C. refuse
D. neglect
【单选题】
He is not seriously ill, but only a _________ headache.___
A. obvious
B. delicate
C. slight
D. temporary
【单选题】
On average, a successful lawyer has to talk to several _________ a day.___
A. customers
B. supporters
C. guests
D. clients
【单选题】
What is the train _________ to Birmingham?___
A. fee
B. tip
C. fare
D. cost
【单选题】
He put forward a theory, _______ of great importance to the progress of science of technology.___
A. I think which is
B. which I think is
C. which is I think
D. I think it is
【单选题】
If the doctor had been available, the child ____________.___
A. would not die
B. could not have died
C. might not die
D. should not have died
【单选题】
The music sounded _______. I enjoyed every minute of it.___
A. well
B. boring
C. wonderfully
D. beautiful
【单选题】
Put it down, Richard. You mustn't read ______letter. ___
A. anyone's else's
B. anyone's else
C. anyone else's
D. anyone else
【单选题】
I saw that she was in difficulty with all those parcels, so I offered my_____.___
A. service
B. money
C. use
D. chance
【单选题】
We were all surprised when he made it clear that he _____________office soon.___
A. leaves
B. would leave
C. left
D. had left
【单选题】
The electric fan has blown away the terrible smell in the hall, ______?___
A. can't it
B. isn't it
C. hasn't it
D. doesn't it
【填空题】
In every cultivated language there are two great classes of words which, taken together, comprise the whole vocabulary. First, there are those words ___ which we become acquainted in daily conversation,
【填空题】
which we ___,that is to say, from the members of our own family and from our familiar associates,
【填空题】
and which we should know and use ___ we could not read or write.
【填空题】
They ___the common things of life,
【填空题】
and are the stock in trade of all who___the language. Such words may be called “popular”,
【填空题】
since they belong to the people___and are not the exclusive share of a limited class. On the other hand,
【填空题】
our language___a multitude of words which are comparatively seldom used in ordinary conversation. Their meanings are known to every educated person,
【填空题】
but there is little___to use them at home or in the market-place.
【填空题】
Our___acquaintance with them comes not from
【填空题】
our mother’s___or from the talk of our school-mates
【填空题】
,___from books that we read,
【填空题】
lectures that we___,or the more formal conversation of highly educated
【填空题】
speakers who are discussing some particular___in a style appropriately elevated above
【填空题】
the habitual___of everyday life. Such words are called “learned”,
